[super_mario]

I tried it on iPhone 4 as well and it does speak some answers. Touch the "i" button on the left of the red microphone button and make sure "Speak answers back" at the bottom is turned on.

[RenierZA]

Interesting.

I can the "i" button in that video, but my app does not have it, and I don't get voice answers.

Edit: Switching to English (US) does give vocal answers, but then it doesn't seem to understand my South African accent anymore.